List of non-marine molluscs of Montana

The non-marine mollusks of Montana — a part of the molluscan fauna of the state in the Northwestern United States.

A number of species of non-marine molluscs are found in the wild in Montana.

[3] There are at least 42 species of freshwater bivalves known in Montana.

[4] The Montana Department of Fish, Wildlife and Parks has identified a number of bivalve species as Species of Concern.

[5] Freshwater gastropods in Montana include:[6] Bithyniidae Thiaridae Valvatidae[7] Hydrobiidae[8] Acroloxidae Lymnaeidae Physidae Planorbidae Land gastropods in Montana include:[10] Succineidae Arionidae Megomphicidae Vertiginidae Pupillidae Discidae Limacidae Agriolimacidae Oxychilidae Gastrodontidae Pristilomatidae Vitrinidae Euconulidae Haplotrematidae Oreohelicidae Polygyridae Cochlicopidae Charopidae Punctidae Thysanophoridae Valloniidae Freshwater bivalves in Montana include: Margaritiferidae[11] Unionidae[12] Sphaeriidae[13]